About Dexterous Hand

The Fourier Bionic Five-Finger Dexterous Hand features a humanoid five-finger design with built-in 6 linear actuators and control circuits. It has 6 active degrees of freedom (2 for thumb, 1 for each of the other four fingers) and 5 passive degrees of freedom, totaling 11 movable joints. Through PID control algorithms, it can achieve human-like complex grasping operations at different speeds and force control, while providing standard SDK support for secondary application development.

Product Composition

Appearance Dimensions

Joint Introduction

Joint	Diagram	Range
Index Finger Middle Finger Ring Finger Little Finger		0° ~ 90°
Thumb Flexion		0° ~ 70°
Thumb Abduction		0° ~ 100°

Interface Description

Power Interface

• DC Power Supply: 12V ~ 65V
• Polarity: Left positive, Right negative

Communication Interface

• 100 Mbps Four-Wire Ethernet
• From left to right: TXN, TXP, RXN, RXP

SWD Debug Interface

• SWD interface is used for standard program download and online debugging.

Wrist Adapter Board Interface

• Quick-connect connectors for power interface, 100Mbps four-wire Ethernet, and programming pins.

• MX1.25 2P/3P/4P horizontal thin wire-to-board connectors for connecting dexterous hand driver.

Technical Parameters

Parameter Category	Parameter Name	Parameter Value
Mechanical Parameters	Dimensions (Hand Length × Palm Width × Palm Thickness)	179mm × 76mm × 46.5mm
	Weight	515g
	Total Joints	11
	Active Degrees of Freedom	6
	Main Body Material	Metal alloy, silicone, and other materials
	Drive Type	Coreless motor
	Transmission Method	Linkage
	Control Mode	Position, speed control
Electrical Parameters	Supply Voltage	12V~60V, 46V recommended, 2A
	Communication Interface	Ethernet
	Operating Temperature	Recommended operating temperature: 0℃~40℃
Performance Parameters	Average Fingertip Force	6N
	Maximum Load of Whole Hand	40kg
	Maximum Load per Finger	10kg
	Fingertip Repeated Positioning Accuracy	0.5mm
	Finger Opening and Closing Cycle Time	< 1s